Solar cell modeling in normal and degraded operations for simulation and monitoring
Résumé
The transition to clean energies is a major environmental and economic issue. The transformation of solar
irradiance into electrical energy appears to be one of the most promising solutions thanks to its simplicity of
implementation and its worldwide availability. However, the lifespan of solar cells and their efficiency remain
open research issues. Improving the performance of solar cells requires in-depth knowledge of this equipment
on different levels in normal, degraded and faulty operations. This paper presents a multi-physical modeling
of solar cells integrating di↵erent phenomena on three levels of abstraction: the material level, the cell level
and the panel level. The proposed model highlights the key parameters of the system and their influence on
its performance, thus, it is possible to simulate normal operations and degraded operations by introducing
variations of the system characteristics. On the material level, the simulation results show that a variation
of 1mv in the open circuit voltage causes a variation of 4.68% in the cell power. On the cell level, and after
2000 hours of use of the photovoltaic cell in presence of wear phenomenon, the observed degradation in the
cell performance represents a voltage decrease of 38.98% and a 40% current decrease. These results are in
agreement with the experimental measurements available in the literature, corroborating the effectiveness
of the proposed model.
Domaines
Sciences de l'ingénieur [physics]
Origine : Fichiers produits par l'(les) auteur(s)